fix: update contract ABI to match deployed ServiceQualityOracle (#24)

Replace old contract ABI with correct ABI from deployed
ServiceQualityOracle contract at 0x6d5550698F930210c3f50efe744bF51C55D791f6.

This resolves production failures where oracle attempts to call
new contract with incompatible old ABI interface.

Author: MoonBoi9001